thermal: exynos: check STATUS register in exynos_tmu_initialize()

STATUS register is present on all SoCs so move its checking into
exynos_tmu_initialize().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

1 files changed, 13 insertions, 32 deletions

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index a0c16044d20a..3b41666b2f13 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -331,6 +331,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
         struct thermal_zone_device *tzd = data->tzd;
         const struct thermal_trip * const trips =
                 of_thermal_get_trip_points(tzd);
+        unsigned int status;
         int ret = 0, temp;
 
         if (!trips) {
@@ -359,7 +360,13 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
         clk_enable(data->clk);
         if (!IS_ERR(data->clk_sec))
                 clk_enable(data->clk_sec);
-        ret = data->tmu_initialize(pdev);
+
+        status = readb(data->base + EXYNOS_TMU_REG_STATUS);
+        if (!status)
+                ret = -EBUSY;
+        else
+                ret = data->tmu_initialize(pdev);
+
         clk_disable(data->clk);
         mutex_unlock(&data->lock);
         if (!IS_ERR(data->clk_sec))
@@ -406,13 +413,6 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev)
                 of_thermal_get_trip_points(tz);
         int ret = 0, threshold_code, i;
         unsigned long reference, temp;
-        unsigned int status;
-
-        status = readb(data->base + EXYNOS_TMU_REG_STATUS);
-        if (!status) {
-                ret = -EBUSY;
-                goto out;
-        }
 
         sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO));
 
@@ -441,16 +441,10 @@ static int exynos4412_tmu_initialize(struct platform_device *pdev)
         struct exynos_tmu_data *data = platform_get_drvdata(pdev);
         const struct thermal_trip * const trips =
                 of_thermal_get_trip_points(data->tzd);
-        unsigned int status, trim_info, con, ctrl, rising_threshold;
+        unsigned int trim_info, con, ctrl, rising_threshold;
         int ret = 0, threshold_code, i;
         unsigned long crit_temp = 0;
 
-        status = readb(data->base + EXYNOS_TMU_REG_STATUS);
-        if (!status) {
-                ret = -EBUSY;
-                goto out;
-        }
-
         if (data->soc == SOC_ARCH_EXYNOS3250 ||
             data->soc == SOC_ARCH_EXYNOS4412 ||
             data->soc == SOC_ARCH_EXYNOS5250) {
@@ -497,7 +491,6 @@ static int exynos4412_tmu_initialize(struct platform_device *pdev)
         con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
         writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
 
-out:
         return ret;
 }
 
@@ -505,17 +498,11 @@ static int exynos5433_tmu_initialize(struct platform_device *pdev)
 {
         struct exynos_tmu_data *data = platform_get_drvdata(pdev);
         struct thermal_zone_device *tz = data->tzd;
-        unsigned int status, trim_info;
+        unsigned int trim_info;
         unsigned int rising_threshold = 0, falling_threshold = 0;
         int temp, temp_hist;
         int ret = 0, threshold_code, i, sensor_id, cal_type;
 
-        status = readb(data->base + EXYNOS_TMU_REG_STATUS);
-        if (!status) {
-                ret = -EBUSY;
-                goto out;
-        }
-
         trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
         sanitize_temp_error(data, trim_info);
 
@@ -590,7 +577,7 @@ static int exynos5433_tmu_initialize(struct platform_device *pdev)
         }
 
         data->tmu_clear_irqs(data);
-out:
+
         return ret;
 }
 
@@ -598,18 +585,12 @@ static int exynos7_tmu_initialize(struct platform_device *pdev)
 {
         struct exynos_tmu_data *data = platform_get_drvdata(pdev);
         struct thermal_zone_device *tz = data->tzd;
-        unsigned int status, trim_info;
+        unsigned int trim_info;
         unsigned int rising_threshold = 0, falling_threshold = 0;
         int ret = 0, threshold_code, i;
         int temp, temp_hist;
         unsigned int reg_off, bit_off;
 
-        status = readb(data->base + EXYNOS_TMU_REG_STATUS);
-        if (!status) {
-                ret = -EBUSY;
-                goto out;
-        }
-
         trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
 
         data->temp_error1 = trim_info & EXYNOS7_TMU_TEMP_MASK;
@@ -667,7 +648,7 @@ static int exynos7_tmu_initialize(struct platform_device *pdev)
         }
 
         data->tmu_clear_irqs(data);
-out:
+
         return ret;
 }